The Niche for <i>Escherichia coli</i> Sequence Type 131 Among Veterans: Urinary Tract Abnormalities and Long-Term Care Facilities.

The H 30R isolates exhibited an even stronger association with fluoroquinolone resistance (100% [by definition] vs 8.5% for non- H 30R isolates; P < .001), plus significant associations with resistance to ampicillin, ampicillin/sulbactam, and gentamicin, and a numerically greater prevalence of TMP/SMZ resistance that approached significance (29.4% vs 18.1%; P = .08).

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However, arguing against such an association was our failure to detect, among patients with an ST131 or H 30R isolate, even a suggestive trend toward more severe disease or a greater likelihood of infection-associated clinical manifestations or persistence/recurrence.

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